Stage 2 Performance Software has been specifically developed to attain the best possible performance from the 2.0TFSI with a bolt on performance exhaust and quality cold air intake. Stage 2 allows you to run a sports cat or de-cat without the CEL (Check Engine Light) being triggered by a ‘CAT Efficiency’ error code. Stage 2 software is boost, fuelling and timing adjustable with slightly more flexibility than Stage 1 allowing the vehicle to be setup to suit the fuel quality, driving conditions and driver preferences. 2.0TFSI Stage 2 software is specifically tuned to suit the limitations of the standard high pressure fuel pump.